[cisco-voip] UCM <-> Gateway: H323 vs. SIP

[Nick Matthews]

These days if you're using UCM 7.x or later (especially 8.x, just
FCS'd) the feature gaps between the two are not very large at all.  I
would say go with SIP because it's a protocol that will be used for
much longer than H.323 which is quickly starting to be used less.
It's easier to troubleshoot and understand if you don't know either of
the protocols.

-nick

On Sun, Feb 14, 2010 at 5:58 PM, Carter, Bill <bcarter at sentinel.com> wrote:
>
> I am preparing for a UCM 7.1(3) install. The deployment includes Zoom
> CallREC call recording. We will use SPANless recording which utilizes a
> SIP trunk between UCM and Zoom. A majority of the calls will be
> recorded. I am wondering if there are advantages to using SIP from UCM
> to the Gateways. I haven't studied the UCM/SIP integration with gateways
> since studying for the old CCIE Voice with CM 4.1.
>
> I am looking for CCO documents comparing H323 and SIP as it relates to
> UCM features and functionality, and any experiences from the community
> using SIP for the UCM to Voice Gateway connections.
>
> Thanks much
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